Stove.



PATENTED 00T. so, 1906.

J, M. UTZ.

sToVB. l IAPILIGATION IvIL'ED AUG. 24, 1905.

2 SHEETS-rSHEET 1.

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l Inv-enter Witnesses` y Attorneys .l

1HE Hamers PETERS co.. wAsmvGroma. c.

, V PATBNTED OCT. 30, 1906. J. M, U'IZ.

STOVE.

APPLICATION FILED AUG. 24,'1905.

2 SHEETS-SHEET 2.

Jy acaMZZZ Inventor Attorneys*A TH: nomas Pen-Rs 00,. wAsHmGrou, 1:4 c,

f No. 834,345.

UNITED sTATEs PATENT omnes;

JooBM. urz, or DUFF, INDIANA.l

T a/ZZ whom/it may conserve.'

Be itvknown that I, JACOB M. U'rz, a citizen 'of the United States,residing at Duff, in f the county of Dubois and State of Indiana,

tion is better understood, the same consists t in certain novel featuresof construction, as

hereinafter fully described and claimed.

`In vthe accompanying drawings, forming a part lof this specification,and in which correspondingr parts are denoted by like designatingcharacters, is illustrated the preferred form of embodiment of theinvention capabley of carryingfthe same into practical operation.

In thedrawings, Figure 1 is a longitudinal vertical section. Fig. 2 is ahorizontal section on the line 2 2 of Fig. 1. Fig. 3 is a verticalAsection on the line 3 3 of Fig. 2.

The improved device comprises an outer I y shell or drum 10, preferablyof sheet metal of V requisite quality and strength and closed'at theupperk end by' a top member 11, prefer4 ably ofv cast-iron, and closedat the lower end by a bottom,member' 12, also of cast-iron,

the bottom member having an ash-pit 13 disposed below its centralportion.

Within the outer shell .10 an inner shell 14 is arranged' and spacedfrom the outer shell and extendingbetween the top member 11 and bottommember 12, with the ash-pit 13 with a smoke discharge or outlet 17.

Connecting the outer and inner shells adj a- "cent to the smoke-outlet17 is a artition 18,

extending' the whole distance etween the vtop member 11 and bottommember 12.

A smoke-aperture 19 is formed in the inner shell'14 adjacent to thepartition 18 and at the opposite side of the same from thedischargevmember 17. A

Disposed within the space between the Spiication of Letters Patent.

' Application led August 24,1905. Serial No. 275,657.

"si-'OVE Pateite oct. to, ieee.

shells 10 and J14 area lurality of .partitions 21 of less length than tAe shells and arranged with the ends alternately spaced from the top andbottom members so that the 'smoke fand `other products of the'combustion are caused to follow a zigzag course from the aperture 19 tothe final ldisch-arge t17 Any required number of the partitions 21- maybe employed, and for the vpurp'ose of illustration three are shown, twowith the passages beneath them yand one with the passage above it, sothat the ysmoke and 'other products vof the combustion will passdownward from the aperture 19, beneath thejfirst partition 21, thenceover the next partition, thence beneath the third partition, 'and thenceout through the discharge .19. By this means the smoke and 'other matteris 'caused to traverse upwardly and downwardly between the shells in itspassage around them or in a zigzag course-,'the nu'mber of the lcoursesdepending on the number `of the partitions 21. y l

A direct-draft damper 22 will'preferably be arranged in the inner shell14 adjacent to the main outlet 17 for use in iirst starting the lforming closures to the inner ends of the chambers which come above thelinings 41 of one thickness only of the sheet metal of which the shellsare constructed. By this arrangement the area within the chamber issubjected to heat radiated into the same from the fire within the innershell through the comparatively thin end closures formed by the wall ofthe inner shell and also from the smoke-flame and other products of thecombustion passing through the space between the shell. The air in thechamber is thus very ra idly and highly heated and eX- pelled therefiomand re laced by the cooler air from the outside, anni) thus creates arapid and continuous circulation of the air through 'the chamber andrapidly warming the air in employed, and they will be arranged where thegreatest heat occurs, or where lof IIC

they will be subjected most directly to the currents of hot smoke-flameand other products of the combustion.

The grate employed in the improved heater is formed in two plates orframes 24 25, supported for rotation at 26 upon a hinge 27 and providedwith handles 28 29 extending beyond the outer line ofthe stovestructure.

The grate-frames are provided with radiaing-apertures, as shown in Fig.2, and by vibrating the two grate members in opposite directions theashes andclinkers will be discharged into the ash-pit: 13.

The ashepit is about Iequal in width to the inner shell 14, and theouter'shell 1() overhangs theyash-pit at-the sides, as shown in Fig. 3,and the overhanging portions are provided with cleanout apertures 30 31,having detachable closures 32 33.

The entrance to the ash-pit is provided with a door 35, hinged at 42,having a plurality of draft-apertures, and with aclosure 37, hinged at88 to the door 35. Connected to swing upon the door 35 is anut 39,through Whicha screw operates, the. screw being mounted 'torotate 'inthe, door. By this means' the swinging closure may be adjusted to any.desired point and locked in any desired position to effectually controlthe draft ofthe stove. i y Y The shells 10 14 and other parts may be ofany required size or shape, but will preferably be elliptical, asrepresented.

Having thus described the invention, what is claimed is- Inr aheating-stove a base-plate, an ash-pit extending from said base-plate,an intermediate plate bearing upon said ash-pit and eX- tendinglaterally thereof at the sides and with a central aperture communicatingwith said ash-pit, a grate supported within the ash-pit beneath saidaperture, an outer shell bearing at the lower end upon the intermediateplate, an inner shell supported at its lower end upon said intermediateplate and inclosing said aperture and the grate beneath the same andprovided with an opening near the smokelue and communicatiiw with thespace between the shells, a top plbate bearing upon the upper ends ofboth of said shells, a smokeflue leading from said to plate and communieating with the space getween the shells, a shut-off plate within saidspace between said smoke-flue and said opening in said inner shell, anda plurality of sA aced deilectingplates within said space an extendingalternately upward from said intermediate plate and downward from saidupper plate.

In testimony that I claim the foregoing as my own l have hereto ai'lixedmy signature in the presence of two witnesses.

JACOB M. UTZ.

Witnesses:

JAMES H. ATKINsoN, WrLLiAM G TEGMEYER.

